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QuietOn_userguide_2017_90x90_EN_13122017.pdf 9 13.12.2017 10:36:11
9 LABORATORY ATTENUATION
Foam eartips (active)
Frequency (Hz)
Mean Attenuation (dB)
Standard Deviation (dB)
APV (dB)
Silicone eartips (active)
Frequency (Hz)
Mean Attenuation (dB)
Standard Deviation (dB)
APV (dB)
Foam eartips (passive)
Frequency (Hz)
Mean Attenuation (dB)
Standard Deviation (dB)
APV (dB)
Silicone eartips (passive)
Frequency (Hz)
Mean Attenuation (dB)
Standard Deviation (dB)
APV (dB)
The highest level of external noise for which the ANR circuit is operating correctly is 100 dB(A).
EN 352-5:2002 + A1:2005
63
125
250
500 1000 2000 4000 8000
42
36
29
42
5
5
4
5
37
37
32
24
20
EN 352-5:2002 + A1:2005
63
125
250
500 1000 2000 4000 8000
46
36
27
41
7
7
6
7
34
39
29
21
EN 352-2:2002
63
125
250
500 1000 2000 4000 8000
22
24
24
26
4
5
4
5
18
19
21
21
EN 352-2:2002
125
250
500 1000 2000 4000 8000
63
25
24
22
23
6
7
7
5
18
17
17
18
25
30
34
43
5
5
6
4
25
27
39
23
25
29
36
5
6
6
6
17
18
22
29
28
35
38
44
5
5
6
4
23
30
32
40
25
32
28
39
5
6
6
6
20
25
22
32
SNR
26
H
25
M
22
L
24
SNR
22
H
20
M
19
L
20
SNR
28
H
29
M
24
L
22
SNR
23
H
23
M
20
L
18
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